Her facebook site “The Knighthood Of Ozz” has been backed by Ozzy’s daughter Kelly who tweeted, “this really needs to happen” and the rock legend’s former guitarist Bernie Torme.

Helen wanted a gong for every Sabbath member, but singled-out Ozzy after being told it was unlikely all of the band would receive a knighthood. The original line-up also boasted Tony Iommi, Geezer Butler and Bill Ward.

Helen said: Our campaign has reached Buckingham Palace, as a friend of mine had sent off letters explaining about our battle for Ozzy’s knighthood - and they have replied positively.

“As Black Sabbath are set to perform at Hyde Park, London, on July 4, It would be a fitting tribute to Ozzy if we were to reach our target in the days following their performance.”

I have fought long and hard for this along with my followers on The Knighthood Of Ozz Facebook page, and though, at times, I feel like we are not getting anywhere, I am not one for giving up.

“I intend to see this right through to the end, whatever the outcome.”

She added: “Unfortunately, David Spooner (who is in charge of honours in the UK) said that it is highly unlikely the whole band would get a knighthood and that I would have a better chance with a single member of the band.

“So I chose Ozzy Osbourne as he is the voice of Sabbath.”

Aston-born Ozzy, aged 65, is riding high after the band’s comeback album 13 soared to the top of the charts last year.

The Birmingham heavy metal pioneers have also played a series of sell-out gigs.